Sounds like mixed reviews
BTW just so you guys know a lot of the alien/crystal skull/sci fi physics was taken from the material of Richard C. Hoagland. Depending on your view of him this is either really groundbreaking in that his stuff is getting mainstream publicity or terrible that a charlatan was the basis for the not so great plot of this Indy film.
I haven't seen it yet but I intend to but I thought i'd pass along that info.